Calculate the value of Keqat 25.C
Keq is the equilbrium constant Ksp is the solubility constant They are related in that Ksp is a type of Keq, but Ksp only deals with how soluble something is under specific conditions. Keq is alot more general, and is usually used to designate what a reaction looks like at equilibrium (ie: max.
- For example, consider the following general reaction: A(g)+B(l)rightleftharpoonsC(g)+D(s) Thus, the equilibrium constant Kc expression is written as: Kc=(C)/(A) or using pressures as: KP=(PC)/(PA) Note that aqueous state is treated as gases, however, we don't calculate KP in this case from pressures, therefore, we only find Kc: A(aq.
- The K p calculator is a tool that will convert the equilibrium constant, K c, to K p - the equilibrium constant in terms of partial pressure. In the following article we will explain what is K p, as well as providing you with the K p equation. You will also find out how to calculate K p from K c (or K c from K p).
- Calculate the concentrations and substitute them into an expression and compute the 'experimental concentration quotient' or 'Q'. If Q is equal to K eq (50 in this case) then the system is already at equilibrium and stable. If Q K eq then the product is too high and must decrease. Therefore the reverse reaction is favoured.
F2(g) + 2I- 2F-(aq) + I2(g)
I'm thinking the fact that it's at equilibrium is what I'm not accounting for, but here is what I've done.
For Ecell I have F2 as my cathode and I as my anode.
I got 2.331 for this.
I got 2.331 for this.
How To Calculate Keq From Concentration
Next I got my G value. G= -nFE -(2)(9.65x 104)(2.331)
I got -449,883 J for this.(I left it in joules for the next part) Settlers 7 for mac download.
I got -449,883 J for this.(I left it in joules for the next part) Settlers 7 for mac download.
Finally, I used the rearranged equation for the relation between G and K.
Keq= ex of -(G/RT) -(-449,883/8.314 x 298)=181.58
e181.58= The wrong answer.
Any thoughts? Thanks
1 Answer
Aug 21, 2016
Explanation:
The equilibrium constant of a reaction under the general form:
can be calculated by the general expression of #K_(eq)# as follows:
Therefore, #K_(eq)=([C][D])/([A][B])=K_c#
If the reactants and products are gases, we can also calculate the equilibrium constant using pressures, in this case the equilibrium constant is called #K_P# :
How To Calculate Keq From Standard Free Energy
Note that, if any of the reactants or products are in the liquid or solid states, these are not included in the expression of the equilibrium constant.
For example, consider the following general reaction:
Thus, the equilibrium constant #K_c# expression is written as:
or using pressures as: Verlag font mac.
Empire and puzzles heroes list. Note that aqueous state is treated as gases, however, we don't calculate #K_P# in this case from pressures, therefore, we only find #K_c# :
How To Calculate Keq With Temperature
This lesson could be even discussed with more details. I recommend that you watch the following video which is one of an entire chapter of five videos on chemical equilibrium:
Chemical Equilibrium | The Equilibrium Conditions.
Chemical Equilibrium | The Equilibrium Conditions.
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